Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures

Abstract Today, geopolymer has an important place in producing sustainable alternative products by consuming less energy. This paper researches the elevated-temperature behavior of metazeolite (MZ) and slag (S) based geopolymer composites, reinforced by polyvinyl alcohol fiber (PVA) (at 0.3%, 0.6% a...

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Autor principal:	Aygörmez,Yurdakul
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2021
Materias:	geopolymer metazeolite slag polyvinyl alcohol fiber basalt fiber freezing-thawing high-temperature
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2021000100145
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spelling	oai:scielo:S0718-915X20210001001452021-05-19Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperaturesAygörmez,Yurdakul geopolymer metazeolite slag polyvinyl alcohol fiber basalt fiber freezing-thawing high-temperature Abstract Today, geopolymer has an important place in producing sustainable alternative products by consuming less energy. This paper researches the elevated-temperature behavior of metazeolite (MZ) and slag (S) based geopolymer composites, reinforced by polyvinyl alcohol fiber (PVA) (at 0.3%, 0.6% and 0.9% by volume), and basalt fiber (B) (at 0.3%, 0.6% and 0.9% by volume). The curing was carried out at room temperature for up to 7 days and then the freeze-thaw test was applied as a curing method for up to 28 days. Slag was used alongside metazeolite to solve the problem of delayed setting time with its high Ca content. After 7 days, the damp environment provided by the freeze-thaw curing ensured the preservation of the compact structure and the continuation of geopolymerization. The resulting geopolymer composites were exposed to temperatures of 250, 500, and 750 oC. The flexural and compressive strengths, microstructure (FT-IR, XRD, SEM, TGA-DTA, and micro-CT analyzes), ultrasonic pulse velocity (UPV), visual inspection, and weight-losses of the geopolymers were examined to evaluate their behavior. According to the results, it was observed that geopolymer samples maintained their stability after 750oC. In this way, a sustainable geopolymer composite was produced by using less energy.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.20 n.1 20212021-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2021000100145en10.7764/rdlc.20.1.145
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	geopolymer metazeolite slag polyvinyl alcohol fiber basalt fiber freezing-thawing high-temperature
spellingShingle	geopolymer metazeolite slag polyvinyl alcohol fiber basalt fiber freezing-thawing high-temperature Aygörmez,Yurdakul Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
description	Abstract Today, geopolymer has an important place in producing sustainable alternative products by consuming less energy. This paper researches the elevated-temperature behavior of metazeolite (MZ) and slag (S) based geopolymer composites, reinforced by polyvinyl alcohol fiber (PVA) (at 0.3%, 0.6% and 0.9% by volume), and basalt fiber (B) (at 0.3%, 0.6% and 0.9% by volume). The curing was carried out at room temperature for up to 7 days and then the freeze-thaw test was applied as a curing method for up to 28 days. Slag was used alongside metazeolite to solve the problem of delayed setting time with its high Ca content. After 7 days, the damp environment provided by the freeze-thaw curing ensured the preservation of the compact structure and the continuation of geopolymerization. The resulting geopolymer composites were exposed to temperatures of 250, 500, and 750 oC. The flexural and compressive strengths, microstructure (FT-IR, XRD, SEM, TGA-DTA, and micro-CT analyzes), ultrasonic pulse velocity (UPV), visual inspection, and weight-losses of the geopolymers were examined to evaluate their behavior. According to the results, it was observed that geopolymer samples maintained their stability after 750oC. In this way, a sustainable geopolymer composite was produced by using less energy.
author	Aygörmez,Yurdakul
author_facet	Aygörmez,Yurdakul
author_sort	Aygörmez,Yurdakul
title	Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
title_short	Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
title_full	Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
title_fullStr	Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
title_full_unstemmed	Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
title_sort	performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2021000100145
work_keys_str_mv	AT aygormezyurdakul performanceofambientandfreezingthawingcuredmetazeoliteandslagbasedgeopolymercompositesagainstelevatedtemperatures
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Performance of ambient and freezing-thawing cured metazeolite and slag based geopolymer composites against elevated temperatures

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